Spindle-support for spinning-machines



(No Model.)

G. DRAPER.

SPINDLE SUPPORT FOR SPINNING MACHINES.

N0. 363,373. Patented May 24, 1887.

Wiki'] E55 E 5.

specification, like letters on the drawings rep- GEORGE DRAPER, O F HOPEDALE, MASSACHUSETTS.

SPlNDLE-SUPPORT FOR SPINNING-MACHINES,

SPECIFICATION forming part of Letters Patent No. 363,373, dated May 24, 1887.

' Application filed February 1, 1883.

To all whom it may concern:

Be it known that I, GEORGE DRAPEB, of Hopedale, county of \Vorcester, and State of Massachusetts, have invented an Improvement in SpindleSupports for Spinning-Machines, of which the following description, in eonnection with the accompanying drawings, is a resenting like parts.

My present invention in spindles relates more especially to improvements in the foot step or end bearing for the spindle, and has for its object to hold the lower end of the spindle in yielding manner without the employment of an elastic or yielding jacket or packing such, for instance, as a fibrous tube interposed between the bolster and its rigid surrounding case or bolster-receiver.

The particular features in which my invention consists will be hereinafter described, and pointed out in the claims at the end of this specification.

Herctofore, in order to obviate injurious gyration of a-rotating spindle, its lower end has been held in a bolster-tube surrounded by an elastic or yielding j aeket or packing, usually a fibrous tube, the latter being interposed between the bolster-tube and a surrounding rigid case or bolster-receiver. In practice it has been found that a bolster-tube so held is at times liable to rotate more orless with the spindle, owing to the action of the latter within it, and the packing is twisted off or torn apart. I discovered that this elastic packing might be dispensed with, provided some other way could be devised to hold the bolster'tube in a yielding manner and at the same time prevent it from rotating with the spindle. In my experiments to this end I placed the bolstertube loosely in the chamber of the said bolster-receiver, and to prevent the rotation of the bolster-tube with the spindle, I added to the said receiver and bolstertube a pin or projection, which was held fixedly with relation to the receiver, and entered loosely a hole or recess in the bolster-tube, the said hole being larger in diameter than the pin entering it.

In my invention, as herein embodied, I have compounded the bolster-tube, or divided it into several concentric tubes or shells, all of which are held loosely with relation to the re- Serial No. 83,751. (No model.)

ceiver and the spindle, yet are positively restrained from rotation with the spindle, and form, practically, one bolster-tube, and between these tubes are spaces to receive thin films of oil, which are to relieve jar, the space being that left by a so-called sliding fit.

Figure 1 represents a spindle in elevation, but with its whirl and bolster-receiver, and bolster-tube, and step-plate, and spindle-rail in section; and Fig. 2 is an inner view of the intermediate shell of the bolster-tube.

The spindle a has a whirl, I), shown as a sleeve-whirl. The step-rail creceives the solid shank of the bolster-receiver (Z, chambered from its top downward for but a part of its length, or to the point d, thus forming a chamber or space for the reception loosely of the bolster-tube e, the latter being herein shown as a compound tube, or one composed of three distinct shells, 1 2 3, each having an internal bore but little larger than the diameter of the shell placed in it, so that oil canenter and remain in the narrow thin space between each shell, and also in the space between the outer shelland the interior of the bolster-receiver, the oil so contained between the parts referred to acting as a cushion to prevent jarring and gyrating vibrations of the top of the spindle when in rotation and unequally loaded.

The inner shell, 3, has a pin, fixed to it,

which is extended into a hole or recess of larger diameter in the intermediate shells, 2 and 1, and the latter shell, 1, receives loosely in a hole or recess made in it the end of a pin or projection, f, of smaller diameter projected into the chamber in the bolster-receiver. The bolster-tube held in this way is free to move laterally to a very limited extentinsubstantially every direction in the chamber in the bolsterreceiver, thus enabling the foot of the spindle to move laterally as it seeks its true center of rotation, and yet the bolster-tube cannot rotate with the spindle, because it is restrained from such movement by the pin f.

The foot of the spindle will preferably run on a steel or other hard foot or step-plate h, driven down into the bottom of the chamber in the receiver, the said chamber acting as a well to retain oihin which the spindle and bolster-tube rest. One or more of the shells may be provided with oil-conducting channels at in spiral or other usual direction. The champrovide the bolster-tube at one side with a tube or feeder, substantially as in United States Patent No. 204,085, May 21, 1878.

The oil-spaces referred to will in practice he as slight as possible and permit rotation of the bolster, if not held by the pin or projection, too much looseness, permitting gyration of the spindle.

I claim 1. The bolster-receiver and its loosely-held compound bolster-tube composed of several independent concentric shells placed loosely one within the other, as shown, and loosely united together by a pin or projection, combined with a spindle having its lower end sup ported in the said receiver, substantially as described.

2. The spindle, the bolster-receiver adapted to, support the lower end of the spindle, and the bolster-tube placed therein loosely, and a pin or projection to restrain the bolster-tube from rotation with the spindle, combined with an open nut fitted into the receiver above the bolster-tube, substantially as described.

In testimony whereof I have signed my name to this specification in .the presence of two subscribing witnesses.

GEORGE DRAPER.

Witnesses:

G. W. GREGORY, W. H. THURSTON. 

